Finger-bar for harvesting-machines.



No. 707,460. Patented Aug. l9, l902. J. F. STEWARD. FINGER BAR FUR HARVESTING MACHINES.

(AppIica-tion filed July 11, 1902.)

(No Model.)

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JOHN F. STEWARD, OF CHICAGO, ILLINOIS.

lFlNGER-BAR FOR HARVESTING MACHlNES.

SPECIFICATION forming part of Letters Patent No. 707,460, dated August 19, 1902.

Application filed July 11 1902. Serial No. 115.198- (No model.)

To a whont may concern:

Be it known that 1, JOHN F. STEWARD, of Chicago, in the county of Cook and State of Illinois, have invented an Improved Finger- Bar for Harvesting-lVIachines, of which the followingis afull description, reference being had to the accompanying drawings,in which Figure 1 is a sectional end view of so much of the finger-bar, roller for the platform-conveyer, and the bar in which its journal rotates as is necessary to illustrate my invention. Fig. 2 is a sectional perspective view. Fig. 3 is a sectional end View of the same detached from the adjacent parts. Fig. 4 is a sectional perspective view ofa modified form of the finger-bar. Fig. 5 is a sectional end View of the bar shown in Fig. 4. Fig. 6 is a rear elevation of the finger-bar, showing the position of the conveyer driving-roller and its front support; and Fig. 7 is a sectional side elevation showing the same parts as Fig. 1, but with another modified form of bar.

The object of my invention is to form the grain-receiving platform ofa harvester so that the upper surface of the conveyer may be as low as possible relative to the cutting apparatus.

In the drawings, A represents the fingerbar of a harvesting-machine. The guards O are secured by the usual bolts to the horizontal member B.

(t represents the vertical member of the finger-bar, and a the horizontal member to.

which the metallic bottom D is usually riveted.

E is the roller that carries the endless conveyer, and e the conveyer-guide. In the latter the roller is journaled.

The essential feature of my invention is the downward curvature a in the horizontal member. To shape this bar, I find it preferable to heat it and press the part which is to form the curve a downward when hot. The effect is to draw the metal from the vertical portion a of the finger-bar below the horizontal member B, which incidentally thins the said vertical portion at that point, but no harm is done. But for the fact that a slot would be left through which dirt might pass a slit could be sawed in the vertical member, which would permit the same deflection of the lower horizontal member as shown by dotted lines in Fig. 4. I find, however, that when the bar is properly heated at press gives it the proper form. By making this compression I find that the conveying-canvas maybe lowered three-fourths ofan inch in a bar having a vertical height of two inches.

This form of finger-bar allows me to lower the bottom D; but I do not confine myself to obtaining the result of lowering the bottom by bending the part of the bar to which the bottom D is secured, for the same result may be obtained by securing the bottom to a familiar form of finger-bar shown in Fig. 7, where the bottom D is upturned and riveted to the vertical member a. In this case the bottom itself is stamped to have the same downward curvature as shown in the other figures.

What I claim as my invention, and desire to secure by Letters Patent, is i 1. A platform-bottom for harvesting-machines having a downward depression immediately below the conveyer driving-rollers, substantially as described.

2. A finger-bar for harvesting-machines having a downward depression immediately below the conveying-canvas rollers, substantially as described.

3. A platform for harvesting machines, having a finger-bar with a downward depression and a bottom with a downward depression corresponding therewith, said depression being immediately below the endless conveyor-rollers, substantially as described.

JOHN F. STEWARD.

In presence of- TORRIS H. ALFBEDS, J. G. WARNES. 

